🚀 go-pugleaf

Here's a pseudo coding.

typedef void (__closure *TMyMethod)(LPVOID lpParameter);
typedef struct
{
     TMyMethod Method;
     LPVOID Parameter;
} TSyncMarshal;
class TSynchronize
{
   public:
        TSynchronize()
        {
            FMessageId = RegisterWindowMessage("MyEventMoniker");
            FAppEvents.Reset(new TApplicationEvents(NULL));
            FAppEnvets->OnMessage = this->OnMessage;
        }

        void Synchronize(TMyMethod method, LPVOID lpParameter)
        {
                // psuedo code
                if MainThread == CurrentThread then
                      method(lpParameter)
                else
                {
                      auto_ptr<TMyWin32Event> notifyEvent(new 
TMyWin32Event);
                      TSyncMarshal syncMarshal;
                      syncMarshal.Method = method;
                      syncMarshal.Parameter = lpParameter;
                      PostMessage(Application->MainForm->Handle, FMessageId, 
(UINT) &syncMarshal, (UINT) notifyEvent.get()); // only PostMessage works 
across threads
                      notifyEvent.WaitOne(INFINITE);
                }
        }
    private:
        void __fastcall OnMessage(tagMSG &Msg, bool &Handled)
        {
                if (Msg.message == FMessageId)
                {
                    TSyncMarshal *syncMarshal = (TSyncMarshal *) 
message.wParam;
                    TMyWin32Event *event = (TMyWin32Event *) message.lParam;
                    syncMarshal->Method(syncMarshal->Parameter);
                    notifyEvent->Set();
                    Handled = true;
                }

        }
        UINT FMessageId;
        auto_ptr<TApplicationEvents> FApoEvents;
};

TSynchronize gSynchronizeObj = NULL;
void Synchronize(TMyMethod method, LPVOID lpParameter)
{
    if (gSynchronizeObj == NULL)
         gSynchronizeObj = new TSynchronize();
   gSynchronizeObj(method, lpParameter);
}

You should note that Synchronize() type of function should be used to update 
UI only. Involving your objects that have events in a Synchronize() call 
might cause deadlocks.

"Bogdan" <boprea@xnet.ro> wrote in message 
news:438e1a53@newsgroups.borland.com...
> Hello,
>
> How can I synchronize a function call from a thread using API functions.
> I need to do what Synchronize(Function) from TThread does, but
> with Win 32 API.
>
> Thanks
> Bogdan
>